| 1 | // Copyright Louis Dionne 2013-2022 |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) |
| 4 | |
| 5 | #include <boost/hana/assert.hpp> |
| 6 | #include <boost/hana/for_each.hpp> |
| 7 | #include <boost/hana/fuse.hpp> |
| 8 | #include <boost/hana/fwd/accessors.hpp> |
| 9 | #include <boost/hana/pair.hpp> |
| 10 | #include <boost/hana/string.hpp> |
| 11 | #include <boost/hana/tuple.hpp> |
| 12 | |
| 13 | #include <string> |
| 14 | namespace hana = boost::hana; |
| 15 | |
| 16 | |
| 17 | // |
| 18 | // Unit test inspired by http://stackoverflow.com/q/32678647/627587 |
| 19 | // |
| 20 | |
| 21 | struct Foo { |
| 22 | std::string get_name() const { return "louis"; } |
| 23 | }; |
| 24 | |
| 25 | namespace boost { namespace hana { |
| 26 | template <> |
| 27 | struct accessors_impl<Foo> { |
| 28 | static auto apply() { |
| 29 | return hana::make_tuple( |
| 30 | hana::make_pair(BOOST_HANA_STRING("get_name"), [](auto const& foo) { |
| 31 | return foo.get_name(); |
| 32 | }) |
| 33 | ); |
| 34 | } |
| 35 | }; |
| 36 | }} |
| 37 | |
| 38 | int main() { |
| 39 | Foo foo; |
| 40 | hana::for_each(foo, hana::fuse([](auto /*key*/, std::string const& name) { |
| 41 | BOOST_HANA_RUNTIME_CHECK(name == "louis"); |
| 42 | })); |
| 43 | } |
| 44 |